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%% Author: Pedro Gomes
%% 08/05/2019
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\textbf{Glossary}
\begin{table}[h!]
    \footnotesize
    \centering
    \begin{tabular}{L{2cm}L{15cm}}
            AR                      &   Autoregressive                                                              \\
            BPM                     &   Beats per Minute                                                            \\
            DFA                     &   Detrended Fluctuation Analysis                                              \\
            HF                      &   High Frequency Band                                                           \\
            HR                      &   Hear Rate                                                                     \\
            LF                      &   Low Frequency Band                                                            \\
            \text{$\Delta NNI$}     &   Differences between successive NNI                                            \\
            NNI                     &   Normal-to-Normal Intervals                                                    \\
            NNx                     &   \# of \text{$\Delta NNI$} > x ms                                              \\
            pNNx                    &   NNx / \# of NNI                                                               \\
            PSD                     &   Power Spectral Density                                                      \\
            RMSSD                   &   Root Mean of Squared \text{$\Delta NNI$}                                      \\
            SDANN                   &   Standard Deviation of the Mean of NNI in all 5 minute Segments                \\
            SDNN                    &   Standard Deviation of NNI                                                     \\
            \text{$SDNN_{index}$}   &   Standard Deviation of the Mean of NN Intervals in all 5 minut Segments      \\
            SDSD                    &   Standard Deviation of \text{$\Delta NNI$}                                     \\
            TINN                    &   Triangular Interpolation of the NNI Histogram                                 \\
            ULF                     &   Ultra Low Frequency Band                                                      \\
            VLF                     &   Very Low Frequency Band
    \end{tabular}
    \label{table:glossary}
\end{table}